Cleansing apparatus for paper-making machines



(Nu Model.)

l/V VE/VTUI? Arromv W Q \M Patented Jan. 4, 1898.

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IVILLIAM Ii. MILLSPAUGH, OF PULTENEY, NEW YORK, ASSIGNOR OF ONE- IIALFTO THE DEMING COMPANY, OF SALEM, OHIO.

CLEANSING APPARATUS FOR PAPER-MAKING MACHINES.

SPECIFICATION forming part of Letters Patent No. 596,939, dated January4, 1898.

Application filed September 22, 1896. Serial No. 606,650. (No model.)

TO (ZZZ Zbhm it may OOH/067%: cylinders or parts which come in contactwith Be it known that 1, WILLIAM H. MILLS- the pulp should be keptscrupulously clean PAUGH, a citizen of the United States, residand clearfrom adhering pulp and the various ing at Pulteney, in the county ofSteuben and foreign substances, such as resin or clay con- 5 5 State ofNewYork,haveinventedcertain new tained in pulp made from wood and otherand useful Improvements in Cleansing Appafibrous materials. Otherwisethe parts afore= ratus for Paper-Making Machines; and I do said wouldshortly become coated or clogged hereby declare the following to beafull, clear, by such deposits and their efficiency seriously and exactdescription of the invention, such impaired. To overcome thisdifficulty,,wash- 6o 1 o as will enable others skilled in the art towhich ing by hand has been resorted to. Likewise a it appertains to makeand use the same. solution of sulfuric acid has been used upon Myinvention relates to the art of paperthe making-wire, followed generallyby the making, having more particular reference to application of abruslnthis being necessarily machines used in this connection, andespeatedious and unsatisfactoryoperation at best, [5 cially to cleansingapparatus constituting part the acid when used having a deleteriousefiect of such machine. upon the wire and all parts with which it In themanufacture of paper by modern comesin contact. Heretoforeit has alsobeen methods and means it is essential that the mathe practice to locateat suitable points upon chine employed should be rapid, continuous, themachine transversely-arranged shower- 2c and practically automatic inits operation, an pipes perforated so as to direct water in a example ofsuch machine being furnished in multiplicity of independent streams uponthe that known as the Fourdrinier type. In parts to be cleansed. Thissystem, however, this class of paper-making machines is emis known torequire a large volume of water, ployed a continuously operated systemof necessitating the use of correspondingly large 7 5 2-5 strainers,agitators, conveyers, guide tension, centrifugal pumps and filteringapparatus and couch rolls, together with presses, driof proportion atesize. Furthermore, such ers, calendering and cutting appliances forshower-pipes are necessarily superficial in operating successively uponwood-pulp or their action, since their internal pressure, and otherfibers previously converted into the consequently their safety, demandsthat per- 3o semiliquid condition. Highly important, if foratlonstherein must not occur more frenot the chief element of such system, isits quently than about four or five to the inch, making-wire, consistingof an endless web of while the meshes of an ordinary making-wirewirecloth having ahorizontal or working face number no less than seventyto the inch, and traveling upon suitable transverse bearings the feltconveyers are even more closely 35 from the breast-roll to thecouch-rolls, while woven.

in train with the latter and similarly sup- The main object of myinvention, thereported is a first or wet felt and a second or fore, isto facilitate the removal of all extra dry press-felt, also of greatimportance, each neous and foreign substances or deposits from beingendless and serving to convey papermaking-wires, felts, screens, rolls,or other 0 o pulp to suitable rolls used for compressing pulp-bearingand pulp-contacting parts of a the web and extracting water therefrom. Apaper-making machine without retarding or dandy-rolWis also employed,consisting of a interrupting their continuous use and operwire cylinder,located above the making-wire, ation. This I accomplish by theemployment revolved by contact with the web beneath and of a sheet ofwater or other fluid forcibly di- 5 45 bearing upon its surface letters,figures, or rectedthrough or againstparts operated upon designs inrelief for the purpose of impressing in an unbroken sheet or spray asdistinguished or water-marking the web as it passes. In from amultiplicity of streams.

the operation of such machines it is a matter Further, my inventioncontemplates andinof prime importance that the meshes of the eludes theemployment of a series of inde- I00 50 making-wire, the texture of thefelt-c0nveypendent spraying-nozzles, a supplypipe comers, the wires ofthe dandy-roll, and any other municating with each, a valve-plug commonto all of the nozzles, a consequent reduction in the volume of waterused, a proportionate decrease in the size and power of pumps required,and a more efficient system generally.

The invention will be hereinafter particularly described, and pointedout in the claims.

In the accompanying drawings, which form part of this specification, andwhereon corresponding letters of reference indicate same parts in theseveral views, Figure l repre' sents in plan view'the closed end of acommon supply-pipe, the handle end of a continuous valve-plug, a hangeror support for the latter, and one attached nozzle, while broken away,but in alinement therewitlnis shown in horizontal section similar parts,including a secondary stop for valve-plug at opposite or inlet end ofthe apparatus. Fig. 2 is a central vertical section through thesupply-pipe, one attached nozzle, and valveplug for the latter, taken onthe line 2 2 of Fig. 1; and Fig. 3 is an end view of the invention,showing its supply-pipe, valve-rod handle, and an adjustable stop in thelatter for limiting its relation.

Reference being had to the drawings and letters thereon, A indicates asupplypipe broken at intervals in its longitudinal center by a series ofoutlets B, closed at one end by a screw-cap C, and at its opposite endprovided with a coupling or an elbow D, communicating with a source ofwater-supply. Throughout the length of pipe A and immediately over itsoutlets B are mounted a series of corresponding spraying-nozzles E,eaol1having a flanged base F and an opposite hinged member G, constituting acoupling that surrounds said pipe, and is secured by a set-screw H. Thebody of nozzle E is bored centrally by a water way or channell,communicating at one end with outlet B aforesaid, at this pointsurrounded by a packinggland J and at its opposite end opening into acylindrical valve-chamber K. The surface of valve-chamber K is broken bya dischargeport L, formed by a milling-tool directed to one side of itslongitudinal center and at an angle to its cutting-line, thus producingthe spraying-lip M, which presents an acute angle to action of thestream when in use.

Passing directly through valve-chamber K in each of the nozzles E is acontinuous Valve rod or plug N, common to all nozzles in the series. Atsuitable intervals this plug N is perforated by ports 0, the inlet endsof which are somewhat enlarged, as at P, and are adapted to registerwith channels I of the nozzles. At each end of all nozzles E is provideda stuffiing-box consisting of a screw cap or follower Q, bearing aninternal gland-annulus R, for acting upon and compressing an elastic orother packing-gland S, surrounding the valve-rod. This rod or continuousvalveplug N is thus supported in the nozzles E, but receives additionalsupport in suitable hangers T near its ends or at intermediate points,and is rotated by a handle or crank U, fixed to one end. In a boss V,upon the handle U, is located an adjustable screwstop WV, adapted toengage the surface of pipe A, and thus limit rotation of the valve-plug,while near its opposite end same rod carries a secondary stop X, alsoprovided with an adj Listing-screw Y, for engaging the surface of pipe Awith like effect, the rod itself being of a paper-making machine at anyor all points where needed, being at all times .in connection with apiston or plunger pump for throwing clean Water or other fluids, andespecially efficacious in the following uses: first, when located inconnection with the return portion of the making-wire in position tospray through its meshes; secondly, when similarly located withreference to the wet and dry press-felts; thirdly, when arranged abovethe dandy roll and sometimes the couch-rolls; and, fourthly, when placedabove the gathering-cylinder of a wet machine, the washing of rolls orcylinders mentioned being from the'outside in rather than from theinside out.

It will be noted also that the nozzles E employed may be increased ordecreased in number, according to the width of the machine and theirspecial requirements. They are generally equidistant, however, and areby preference spaced about five inches apart, but two being shown in thedrawings for purposes of clearness.

The operation of this invention is the same whether applied to aFourdrinier machine, to a particular portion thereof, to a cylindermachine, or to any other service wherein a similar sheet or spray offluids is desired, and it will therefore suffice to describe its use andoperation in one connection only, selecting for the purpose an endlessmaking-wire, although the saving eftected by the use of my inventionupon the expensive felt conveyers made of pure wool is even greater.

\Vater, either hot or cold, pumped into main supply-pipe A under apressure from forty to fifty pounds instantly enters all channels Ithrough the registering outlets 13, each throttled by the imperforateportion of common valve rod or plug N. A partial rotation of said rod orplug through the agency of its handle V now serves to simultaneouslyopen all ports 0, establishing communication between them and theirrespective spraying-lips M, against which latter the several streamsforcibly impinge and from which they are discharged in as many thinsheets having diverging sides. These sheets of coarse spray are thusprojected directly upon and through the meshes of the making-wire as itreturns after having delivered its web to the couchrolls, with theeffect of thoroughly removing ICO all adhering fibers, sediment, orforeign matter and preparing the wire for a fresh supply of stuff as itcontinues on its circuit.

The position and location of nozzles E with relation to each other andwith relation to the work imposed upon them determine the point at whichthe outer edges of their respective discharges meet to form one unbrokensheet, such point by preference being the surface sprayed. Nithreference to rod N it is obvious that a partial rotation one way or theother, limited by its graduated stops XV X ,regulates the quality ofspray produced, permitting a coarse or a fine discharge, according torequirements. A complete half-rotation of same rod also serves whendesired to reverse the normal. position of constricted ports 0 for thepurpose of clearing them at times from sediment which may accumulatetherein and tend to choke them.

Having thus described the construction and operation of my invention,What I claim is 1. In a paperanaking machine means for delivering toparts thereof a cleansing fluid in one continuous sheet, substantiallyas described.

In a paper-making machine a nozzle for delivering a cleansing fluid inone continuous sheet, substantially as described.

3. In a paper-nmking machine aseries of valved nozzles for delivering acleansing fluid in one continuous sheet, substantially as described.

4;. In a paper-making machine aseries of nozzles controlled by a commonvalve rod or plug for delivering acleansing fluid in one continuoussheet substantially as described.

5. In a papenmaking' machine the combination with, a common supply-pipe,of a series of nozzles for delivering a cleansing fiuid in a plaincontinuous sheet, substantially as described.

6. In a paper-making machine the combination with a common supply-pipe,of a series of nozzles communicating therewith, a continuous rotatablevalve rod or plug bisecting said nozzles, and a graduated stopforlimiting such rotation substantially as described.

7. In a paper-making machine the combination with a common supply-pipe,of a series of nozzles communicating therewith, a continuous rotatablevalve rod or plug bisecting all nozzles, a handle for rotating said rodor plug having a graduated stop, and a secondary stop, substantially asdescribed.

In testimony whereof I subscribe my signature in presence of twoWitnesses.

IVILLIAM H. MILLSPAU GH.

lVitnesses:

UHARLES 0. Rooms, FRED J. EMENY.

